which of the following sentences uses the present perfect correctly?\nolivia has estudiando mucho para la…

which of the following sentences uses the present perfect correctly?\nolivia has estudiando mucho para la clase.\nolivia ha estudiado mucho para la clase.\nolivia ha estudiando mucho para la clase.\nolivia va a estudiar mucho para la clase.
Answer
Answer:
B. Olivia ha estudiado mucho para la clase.
Brief Explanations:
In Spanish, the present - perfect tense is formed with the auxiliary verb "haber" (in the present tense) and the past participle of the main verb. "Ha estudiado" is the correct present - perfect form, where "ha" is the third - person singular form of "haber" and "estudiado" is the past participle of "estudiar". Option A has the incorrect form "has estudiando", Option C has the incorrect form "ha estudiando", and Option D is in the future tense "va a estudiar".